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公开(公告)号：WO2019177705A1
公开(公告)日：2019-09-19
申请号：PCT/US2019/015819
申请日：2019-01-30
Applicant: EXXONMOBIL UPSTREAM RESEARCH COMPANY , PIERRE, Fritz, Jr.
Inventor： PIERRE, Fritz, Jr.
Abstract: A method for producing liquefied natural gas (LNG) from a natural gas stream having a nitrogen concentration of greater than 1 mol%. At least one liquid nitrogen (LIN) stream is received at an LNG liquefaction facility. The LIN streams may be produced at a different geographic location from the LNG liquefaction facility. A natural gas stream is liquefied by indirect heat exchange with a nitrogen vent stream to form a pressurized LNG stream. The pressurized LNG stream has a nitrogen concentration of greater than 1 mol%. The pressurized LNG stream is directed to one or more stages of a column to produce an LNG stream and the nitrogen vent stream. The column has upper stages and lower stages. The LIN streams are directed to one or more upper stages of the column.
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公开(公告)号：WO2019067123A1
公开(公告)日：2019-04-04
申请号：PCT/US2018/047955
申请日：2018-08-24
Applicant: EXXONMOBIL UPSTREAM RESEARCH COMPANY , PIERRE, Fritz, Jr.
Inventor： PIERRE, Fritz, Jr.
Abstract: A method and system for liquefying a methane-rich high-pressure feed gas stream using a system having first and second heat exchanger zones and a compressed refrigerant stream. The compressed refrigerant stream is cooled and directed to the second heat exchanger zone to additionally cool it below ambient temperature. It is then expanded and passed through the first heat exchanger zone such that it has a temperature that is cooler, by at least 2,8 °C, than the highest fluid temperature within the first heat exchanger zone. The feed gas stream is passed through the first heat exchanger zone to cool at least part of it by indirect heat exchange with the refrigerant stream, thereby forming a liquefied gas stream. At least a portion of the first warm refrigerant stream is directed to the second heat exchanger zone to cool the refrigerant stream, which is compressed.
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3.发明申请LIQUEFIED NATURAL GAS PRODUCTION SYSTEM AND METHOD WITH GREENHOUSE GAS REMOVAL 审中-公开液化天然气生产系统和方法与温室气体去除
公开(公告)号：WO2017011123A1
公开(公告)日：2017-01-19
申请号：PCT/US2016/037375
申请日：2016-06-14
Applicant: EXXONMOBIL UPSTREAM RESEARCH COMPANY , HUNTINGTON, Richard A. , GUPTE, Parag A. , PIERRE, Fritz, Jr. , DENTON, Robert D.
Inventor： HUNTINGTON, Richard A. , GUPTE, Parag A. , PIERRE, Fritz, Jr. , DENTON, Robert D.
CPC classification number: F25J3/08 , F25J1/0022 , F25J1/0035 , F25J1/0042 , F25J1/0072 , F25J1/0221 , F25J1/023 , F25J1/025 , F25J3/0233 , F25J3/0257 , F25J2200/02 , F25J2200/40 , F25J2200/74 , F25J2200/76 , F25J2205/02 , F25J2210/42 , F25J2210/60 , F25J2215/02 , F25J2215/04 , F25J2215/42 , F25J2220/44 , F25J2230/08 , F25J2230/30 , F25J2230/42 , F25J2230/60 , F25J2235/42 , F25J2240/02 , F25J2240/44 , F25J2245/02 , F25J2260/20 , F25J2270/14 , F25J2270/16 , F25J2270/58 , F25J2270/904 , F25J2280/02
Abstract: Described herein are systems and processes to produce liquefied natural gas (LNG) using liquefied nitrogen (LIN) as the refrigerant. Greenhouse gas contaminants are removed from the LIN using a greenhouse gas removal unit.
Abstract translation: 本文描述了使用液化氮（LIN）作为制冷剂来生产液化天然气（LNG）的系统和方法。 使用温室气体清除装置，从林中除去温室气体污染物。
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公开(公告)号：WO2018222230A1
公开(公告)日：2018-12-06
申请号：PCT/US2018/014058
申请日：2018-01-17
Inventor： KAMINSKY, Robert, D. , PIERRE, Fritz, Jr.
Abstract: A method for loading liquefied nitrogen (LIN) into a cryogenic storage tank initially containing liquid natural gas (LNG) and a vapor space above the LNG. First and second nitrogen gas streams are provided. The first nitrogen stream has a lower temperature than the second nitrogen gas stream. While the LNG is offloaded from the storage tank, the first nitrogen gas stream is injected into the vapor space. The storage tank is then purged by injecting the second nitrogen gas stream into the storage tank to thereby reduce a natural gas content of the vapor space to less than 5 mol%. After purging the storage tank, the storage tank is loaded with LIN.
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5.发明申请
公开(公告)号：WO2017105681A1
公开(公告)日：2017-06-22
申请号：PCT/US2016/061249
申请日：2016-11-10
Inventor： PIERRE, Fritz, Jr. , VICTORY, Donald, J.
CPC classification number: F25J1/0277 , F25J1/0015 , F25J1/0022 , F25J1/0042 , F25J1/0072 , F25J1/0204 , F25J1/0221 , F25J1/0223 , F25J1/0265 , F25J1/0278 , F25J2210/42 , F25J2210/60 , F25J2210/62 , F25J2230/20 , F25J2235/42 , F25J2240/02 , F25J2240/12 , F25J2270/16 , F25J2290/60 , F25J2290/72
Abstract: A method for producing liquefied natural gas (LNG). A natural gas stream is transported to a liquefaction vessel. The natural gas stream is liquefied on the liquefaction vessel using at least one heat exchanger that exchanges heat between the natural gas stream and a liquid nitrogen stream to at least partially vaporize the liquefied nitrogen stream, thereby forming a warmed nitrogen gas stream and an at least partially condensed natural gas stream comprising LNG. The liquefaction vessel includes at least one tank that only stores liquid nitrogen and at least one tank that only stores LNG.
Abstract translation: 液化天然气（LNG）的生产方法。 天然气流被输送到液化船。 天然气流在液化容器上使用至少一个热交换器液化，所述热交换器在天然气流与液氮流之间交换热量以至少部分汽化液化的氮气流，从而形成加热的氮气流，并且至少 包含LNG的部分冷凝的天然气流。 液化容器包括至少一个仅储存液氮的储罐和至少一个储存LNG的储罐。
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Patent Agency Ranking6.发明申请
公开(公告)号：WO2022099233A1
公开(公告)日：2022-05-12
申请号：PCT/US2021/071526
申请日：2021-09-21
Applicant: EXXONMOBIL UPSTREAM RESEARCH COMPANY
Inventor： LIU, Yijun , PRIEDEMAN, Douglas, K. , PIERRE, Fritz, Jr.
IPC: F25J1/00
Abstract: Natural gas liquefaction processes may be very energy intensive. Even incremental increases in energy efficiency may be very beneficial. Compression-expansion processing of a natural gas stream and return of a recycle stream following natural gas expansion may lower the natural gas temperature and promote easier liquefaction. A compressor-expander may be utilized in combination with another compressor to afford a cooled, compressed natural gas stream, wherein the recycle stream may be optionally expanded and heat exchanged with the cooled, compressed natural gas stream prior to expansion. The compressor-expander may promote natural gas compression upstream or downstream of another compressor in various system and method configurations.
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7.发明申请
公开(公告)号：WO2021055020A1
公开(公告)日：2021-03-25
申请号：PCT/US2020/028719
申请日：2020-04-17
Applicant: EXXONMOBIL UPSTREAM RESEARCH COMPANY
Inventor： LIU, Yijun , PIERRE, Fritz, Jr.
Abstract: A method and apparatus for producing liquefied natural gas. A portion of a natural gas stream is cooled in a heat exchanger and combined with the natural gas stream. Heavy hydrocarbons are removed from the combined natural gas stream, and the resulting separated natural gas stream is partially condensed in the first heat exchanger, with a liquid stream separated therefrom. The natural gas stream is warmed in the first heat exchanger and then is compressed and cooled. The resultant cooled compressed natural gas stream is expanded, thereby forming a chilled natural gas stream that is separated into a refrigerant stream and a non-refrigerant stream. The refrigerant stream recycled to the heat exchanger to be warmed through heat exchange with one or more process streams associated with pretreating the natural gas stream, thereby generating a warmed refrigerant stream. The warmed refrigerant stream and the non-refrigerant stream are liquefied.
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公开(公告)号：WO2020040952A1
公开(公告)日：2020-02-27
申请号：PCT/US2019/044141
申请日：2019-07-30
Applicant: EXXONMOBIL UPSTREAM RESEARCH COMPANY
Inventor： LIU, Yiijun , PIERRE, Fritz, Jr. , NAGAVARAPU, Ananda, K. , WRIGHT, Xiaoli, Y.
Abstract: A method is disclosed for start-up of a system for liquefying a feed gas stream comprising natural gas. The system has a feed gas compression and expansion loop, and a refrigerant system comprising a primary cooling loop and a sub-cooling loop. The feed gas compression and expansion loop is started up. The refrigerant system is pressurized. Circulation in the primary cooling loop is started and established. Circulation in the sub-cooling loop is started and established. A flow rate of the feed gas stream and circulation rates of the primary cooling loop and the sub-cooling loop are ramped up.
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公开(公告)号：WO2018147973A1
公开(公告)日：2018-08-16
申请号：PCT/US2018/013701
申请日：2018-01-15
Applicant: EXXONMOBIL UPSTREAM RESEARCH COMPANY , PIERRE, Fritz, Jr.
Inventor： PIERRE, Fritz, Jr.
Abstract: A method of producing liquefied natural gas (LNG) is disclosed. A natural gas is compressed in at least two serially arranged compressors to a pressure of at least 2,000 psia and cooled to form a cooled compressed natural gas stream. The cooled compressed natural gas stream is additionally cooled to a temperature below an ambient temperature to form an additionally cooled compressed natural gas stream, which is expanded in at least one work producing natural gas expander to a pressure that is less than 3,000 psia and no greater than the pressure to which the at least two serially arranged compressors compress the natural gas stream, to thereby form a chilled natural gas stream. The chilled natural gas stream is liquefied by indirect heat exchange with a refrigerant to form liquefied natural gas and a warm refrigerant. The cooled compressed natural gas stream is additionally cooled using the warm refrigerant.
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10.发明申请SOLVENT EXTRACTION OF BITUMEN USING HEAT FROM COMBUSTION OF PRODUCT CLEANING STEAMS 审中-公开使用产品清洁剂燃烧加热的溶剂萃取
公开(公告)号：WO2013095758A2
公开(公告)日：2013-06-27
申请号：PCT/US2012/059390
申请日：2012-10-09
Applicant: EXXONMOBIL UPSTREAM RESEARCH COMPANY , SPEIRS, Brian, C. , PIERRE, Fritz, Jr. , ESMAEILI, Payman , RENNARD, David , PACE, Justin
Inventor： SPEIRS, Brian, C. , PIERRE, Fritz, Jr. , ESMAEILI, Payman , RENNARD, David , PACE, Justin
IPC: C10C3/08
Abstract: Described herein is a process that employs heat, derived from the combustion of product cleaning streams, such as waste streams, in a solvent-based extraction process. Solvent extraction of bitumen generally involves combining solvent with a bituminous feed to produce a cleaned bitumen product. Solvent is recovered, for example by utilizing heat to cause evaporation, and recovered solvent may be re-used. In an exemplary embodiment, hot flue gas from waste stream combustion may provide the heat to evaporate the solvent. Product cleaning waste streams may be ones produced from the trim cleaning of solvent extracted bitumen or from treatment of bitumen froth produced in a water-based extraction process. The heat generated can contribute to the energy requirements of the overall solvent extraction of bitumen.
Abstract translation: 这里描述的是在基于溶剂的萃取方法中采用源自产物清洁流（例如废物流）的燃烧的热的方法。 沥青的溶剂萃取通常涉及将溶剂与沥青进料混合以产生清洁的沥青产物。 回收溶剂，例如通过利用热量引起蒸发，并且可以重新使用回收的溶剂。 在示例性实施例中，来自废物流燃烧的热烟道气可以提供热量以蒸发溶剂。 产品清洁废物流可以是通过对提取的溶剂沥青进行修整清洁或者通过处理在水基萃取过程中产生的沥青泡沫而产生的。 产生的热量可以有助于沥青的整体溶剂萃取的能量需求。
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